loongbedrocklinux-userlandd/src/slash-bedrock/share/brl-fetch/distros/ubuntu

#!/bedrock/libexec/busybox sh
#
# Ubuntu bootstrap support
#
#      This program is free software; you can redistribute it and/or
#      modify it under the terms of the GNU General Public License
#      version 2 as published by the Free Software Foundation.
#
# Copyright (c) 2016-2021 Daniel Thau <danthau@bedrocklinux.org>
#

# shellcheck source=src/slash-bedrock/libexec/brl-fetch
. /bedrock/share/common-code
trap 'fetch_abort "Unexpected error occurred."' EXIT

check_supported() {
	true
}

speed_test_url() {
	echo "dists/${target_release}/Release"
}

list_mirrors() {
	case "${target_arch}" in
	"x86_64")
		echo 'http://archive.ubuntu.com/ubuntu'
		mirror_list_url='https://launchpad.net/ubuntu/+archivemirrors'
		download -q "${mirror_list_url}" - |
			awk '/mirrors_list/,/<\/div/' |
			list_links |
			grep "^http"
		;;
	*)
		echo 'http://ports.ubuntu.com/ubuntu-ports/'
		;;
	esac
}

brl_arch_to_distro() {
	case "${1}" in
	"aarch64") echo "arm64" ;;
	"armv7hl") echo "armhf" ;;
	"ppc64le") echo "ppc64el" ;;
	"s390x") echo "s390x" ;;
		# Cannot find 32-bit x86 in Ubuntu 19.04.  Apparently it was dropped.
	"x86_64") echo "amd64" ;;
	*) abort "brl does not know how to translate arch \"${1}\" to ${distro} format" ;;
	esac
}

list_architectures() {
	cat <<EOF
aarch64
armv7hl
ppc64le
s390x
x86_64
EOF
}

default_release() {
	# cdimage is (1) updated to include the latest stable release, (2) does
	# not include any unstable releases, and (3) has a relatively stable
	# format that is relatively unlikely to update in a way that breaks
	# parsing.
	release_list_url='http://cdimage.ubuntu.com/releases/'
	set +o pipefail
	num="$(download -q "${release_list_url}" - 2>/dev/null |
		list_links |
		sed 's,/,,g' |
		grep '^[0-9]*[.][0-9]*$' |
		sort -rn |
		head -n1)"

	codenames="$(download -q "http://archive.ubuntu.com/ubuntu/dists" - 2>/dev/null |
		list_links |
		grep '/$' |
		grep -v -- '-' |
		grep -v -- '^devel/$' |
		grep -ve '[.]' -ve '^/' |
		sed 's,/$,,g')"

	for codename in ${codenames}; do
		if ! download -q "http://archive.ubuntu.com/ubuntu/dists/${codename}/Release" - |
			awk -v"n=${num}" '$1 == "Version:" && $2 == n {exit 1}'; then
			echo "${codename}"
			set +o pipefail
			return
		fi
	done
	set -o pipefail
}

list_releases() {
	for mirror in "${flag_mirror}" $(list_mirrors); do
		if download -q "${mirror}/dists" - |
			list_links |
			grep '/$' |
			grep -v -- '-' |
			grep -ve '[.]' -ve '^/' |
			sed 's,/$,,g' |
			grep -v '^devel$'; then
			break
		fi
	done
}

fetch() {
	bootstrap_deps="debootstrap apt dpkg coreutils dash bash grep sed awk perl bzip2 gzip tar gpgv ubuntu-keyring"
	# libapt-pkg.so.5.X provider changed from libapt-pkg5.0 in pre-eoan to libapt-pkg-dev in eoan
	if [ "$( (
		echo "${target_release:-}"
		echo "eoan"
	) | sort | head -n1)" != "eoan" ]; then
		bootstrap_deps="${bootstrap_deps} libapt-pkg5.0"
	else
		bootstrap_deps="${bootstrap_deps} libapt-pkg-dev"
	fi

	step "Downloading package information database"
	download "${target_mirror}/dists/${target_release}/main/binary-${distro_arch}/Packages.gz" "${bootstrap_dir}/Packages.gz"
	gunzip "${bootstrap_dir}/Packages.gz"

	step "Converting distro package information database to brl format"
	debdb_to_brldb "${bootstrap_dir}/Packages" "${bootstrap_dir}/brldb"

	step "Calculating required bootstrap packages"
	brldb_calculate_required_packages "${bootstrap_dir}/brldb" "${bootstrap_dir}/required_packages" "${bootstrap_deps}"

	step "Downloading bootstrap packages"
	checksum_downloads "${cache}/packages/" "$(awk -v"m=${target_mirror}" '{print m"/"$0}' "${bootstrap_dir}/required_packages")"

	step "Extracting bootstrap packages"
	bootstrap_packages="$(awk -v"d=${cache}/packages/" '{sub(/^.*\//,d);print $1}' "${bootstrap_dir}/required_packages")"
	# shellcheck disable=SC2086
	extract_debs "${bootstrap_dir}" ${bootstrap_packages}

	step "Running bootstrap software"
	setup_chroot "${bootstrap_dir}"
	setup_ssl "${bootstrap_dir}"
	set +o pipefail
	if LANG=C chroot "${bootstrap_dir}" debootstrap --help | grep -q "cache-dir"; then
		share_cache "packages" "${bootstrap_dir}/packages"
		yes "" | LANG=C chroot "${bootstrap_dir}" debootstrap --variant=minbase --cache-dir="/packages" "${target_release}" "/target-root" "${target_mirror}"
	else
		yes "" | LANG=C chroot "${bootstrap_dir}" debootstrap --variant=minbase "${target_release}" "/target-root" "${target_mirror}"
	fi
	set -o pipefail

	step "Configuring"
	if grep -q "\<main\>" "${target_dir}/etc/apt/sources.list" && ! grep -q "\<universe\>" "${target_dir}/etc/apt/sources.list"; then
		# universe contains locales-all package needed below
		sed 's/\<main\>/main universe/' "${target_dir}/etc/apt/sources.list" >"${target_dir}/etc/apt/sources.list-new"
		mv "${target_dir}/etc/apt/sources.list-new" "${target_dir}/etc/apt/sources.list"
	fi
	case "${distro_arch}" in
	"amd64")
		echo "deb http://archive.ubuntu.com/ubuntu/ ${target_release}-security main universe" >>"${target_dir}/etc/apt/sources.list"
		;;
	esac
	set +o pipefail
	setup_chroot "${target_dir}"
	autopkgs="$(LANG=C chroot "${target_dir}" /usr/bin/apt-mark showmanual)"
	# word splitting is desired here
	# shellcheck disable=SC2086
	yes "" | LANG=C chroot "${target_dir}" /usr/bin/apt-mark auto ${autopkgs}
	yes "" | LANG=C chroot "${target_dir}" /usr/bin/apt-get update
	yes "" | LANG=C chroot "${target_dir}" /usr/bin/apt-get install locales-all
	set -o pipefail
}